Originally Posted by
B757200ER
The 787-10 is a market response to two major Boeing customers, Emirates and Singapore, who wanted longer range and higher seating capacity, not as a response to the A350, which is still a paper airplane.
The 787-10 is the replacement for the 777-200ER.... Boeing would not replace the 200ER unless it absolutly had to. If there was no competing aircraft(A350) then Boeing would continue to sell the 777-200ER's. The A350-900 was designed to go against the 777-200ER, Boeing then had to develope a plane to compete with the A350 hence the 787-10. Which by the way Boeing has not anounced/launched the 787-10, it is still being looked into. While the A350-900 is the first of the A350 line due to launch in 2013.
The 787-10 was a market response due to the A350!